package easyto.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;


/**
 * 请求头添加用户id
 */
@Slf4j
@Component
public class AddUserIdRequestHeaderGlobalFilter implements GlobalFilter, Ordered {

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        // 添加请求头
        ServerHttpRequest mutatedRequest = request.mutate()
                .header("uid", "100555")
                .build();

        // 继续过滤器链
        return chain.filter(exchange.mutate().request(mutatedRequest).build());
    }

    @Override
    public int getOrder() {
        // 设置过滤器的执行顺序
        return -1;
    }
}
